whiCh stAtEmEnt is truE ACCorDing to thE pAssAgE
A．mAstECtomy usED to BE ConsiDErED thE only sAFE CoursE.
B．thE ChAnCEs oF survivAl AFtEr A mAstECtomy ArE grEAtEr thAn AFtEr lumpECtomy.
C．mAstECtomy CAn DECrEAsE thE pAtiEnts' ChAnCEs oF A CArE.
D．most womEn prEFEr lumpECtomy.